“I don’t know if it was the timing of my daughter’s death, the nature of her death or the publicity her death got, but the ball started rolling. I was handed a baton I could not put down and we’re here today rolling out Clare’s Law in Scotland.”

Mr Brown said he had to wait 26 months for a coroner’s inquest after his daughter’s death, and had been told data protection laws would have prevented police warning Ms Wood about her killer. She repeatedly contacted police in the months leading up to her death with concerns about ex-boyfriend George ­Appleton, who had been jailed twice for harassing women.

“What we wanted to do was give men and women who are in trouble the chance to make an educated decision of whether to stay or go,” Mr Brown said.

“In the past, police couldn’t tell them, and it must have been frustrating for officers to go to the same address time after time. For them to be gagged was, to me, a nonsense. I really couldn’t believe they were putting girls in that sort of trouble.”

Mr Brown said his daughter would have been “quietly proud” of her father’s actions.

The pilot, which begins on Tuesday, is part of a crackdown on domestic violence which could see the introduction of an offence of domestic abuse.

Mr MacAskill said: “The strength and courage Michael Brown has shown following his daughter’s death is truly ­remarkable and his hard work in ­leading the campaign for the ­development of a pilot scheme will help protect lives.”